Historical Dictionary of London

DEAN STREET

1)East out of Fetter Lane at No. 44. leading to New Street (P.O. Directory). In Farringdon Ward Without.
First mention:O. and M. 1677.
2)South out of Upper East Smithfield to Swan Alley (Horwood, 1799, to Lockie, 1810).
Former name : "Mouse Alley" (Hatton, 1708, to Boyle, 1799).
Removed for the formation of St. Katherine Docks and the adjacent warehouses in 1827.